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[Blender] AO overlaps UVs

Rotornut44

Rotornut44

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Hello all,
Is there a setting in Blender to stop AO from being baked outside of the set UV maps? I normally don't run into issues if I'm baking a single model to a single texture sheet, but if I have multiple models sharing a texture sheet, the AO maps will conflict when I composite them together in photoshop.

No AO: AO Overlaid:
esd_c5_no-ao.jpg
esd_c5_ao.jpg
 
No there isn't. The reason why you must leave approximately .04 to .06 space between islands/ polys.
 
I believe it's pixels in this case. Could be wrong but that always works for me.
 
It must be a different unit if we are only talking .04-.06.. I have been using a 1px spacing on Photoshop. I guess I can compare a few AO textures with my base textures and come up with an average spacing that way.

I'm going to fix the current problematic sheets by hand for now, but I'll now add more spacing in the future. Thanks for the heads up!
 
I'd recommend leaving more space than a single pixel, 5 or 6px at least.
 
I did a bit of comparison with a couple of my current AO maps, and it looks like 10px is about where I want to be at. 9px has been the max I've seen so far, at least.
 
Last edited:
Pyscen said:
No there isn't. The reason why you must leave approximately .04 to .06 space between islands/ polys.
Click to expand...
Digging up my old thread here, but it seems that there is. At least I have the following option I can change in v2.79:
bake_options_blend.jpg


I normally set this to 8px (Based on a video I watched when I was learning how to bake in Blender), however I accidentally set it to 1px on one of my recent bakes and sure enough, the AO remained very close to the UV border. I then bumped it to 2px and it increased another 1px from the UV bounds.
 
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